12504660650 has 48 divisors (see below), whose sum is σ = 24038937600. Its totient is φ = 4834468800.

The previous prime is 12504660647. The next prime is 12504660671. The reversal of 12504660650 is 5606640521.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12504660650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1354751 + ... + 1363949.

It is an arithmetic number, because the mean of its divisors is an integer number (500811200).

Almost surely, 2^12504660650 is an apocalyptic number.

12504660650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12504660650 is a deficient number, since it is larger than the sum of its proper divisors (11534276950).

12504660650 is a wasteful number, since it uses less digits than its factorization.

12504660650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10119 (or 10114 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 12504660650 in words is "twelve billion, five hundred four million, six hundred sixty thousand, six hundred fifty".